Authorities say this man quasi Mohammed -- -- came to New York on a mission he gets a student visa. Under the pretext of being a student in a college in Missouri. And he -- -- here with the again the avowed purpose of committing some sort of Jihad. Here in in the United States. At first court records say enough is considered attacking the New York Stock Exchange but ultimately decided to bomb the Federal Reserve Bank of New York. Prosecutors say -- thought it was part of al-Qaeda but he walked into the hands of an FBI source. The difference -- this guy I believe is. His intent was always there and he came he traveled here to commit this act. This was the fifteenth alleged terror plot targeting New York since 9/11. Authorities expect more of them. I don't think any of these foiled plots. Will discourage people who want to do the same thing not -- boasted of al-Qaeda connections though there's no evidence he actually had an eight. Police in his native Bangladesh raided his family's home in Dhaka where his father is vice president of -- bank -- -- the people vote. He asked me if he could study in America enough -- his father says I have spent all my savings to send him abroad quasi -- -- said his son is incapable of carrying out the attack authorities described. He wants his son return to Bangladesh but the 21 year old faces life in an American prison. Aaron -- -- ABC news New York.

This transcript has been automatically generated and may not be 100% accurate.

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